Battery module with waterproof structure of rear cover screwed with power bank function

Abstract

The utility model relates to battery module technical field, concretely is battery module with the waterproof structure of power bank function back cover screwing, including big body, the inside middle of big body is equipped with battery, the left side of big body is equipped with the front cover, the middle of front cover is inserted and is connected with the positive pole copper column, the side wall of positive pole copper column is connected with the clamping spring for positioning and fixed, the right side of big body is inserted and is connected with the charging seat for clamping fixed, the upside middle part of charging seat is equipped with the charging mouth, the middle fixed connection of charging seat has first PCBA board, first PCBA board and charging mouth are connected, two elastic ejector pins for building circuit loop are equipped between first PCBA board and battery, the right side of charging seat is equipped with the charging cover, the right side inside of charging cover is inserted and is connected with the tail cover guide negative pole, the middle fixed connection of tail cover guide negative pole has second PCBA board, second PCBA board and first PCBA board are connected, the utility model discloses can increase the protection and waterproof performance to battery, can also use as independent power bank, is convenient to carry personally.

Description

Technical Field

[0001] This utility model relates to the field of battery module technology, specifically a battery module with a screw-on waterproof back cover and a power bank function. Background Technology

[0002] Batteries play a vital role in our daily lives, providing power to small electronic devices. Conventional lithium batteries are protected only by a plastic casing, requiring them to be installed in compatible products for charging and use. The lack of extensive protective structures makes the casing prone to cracking and damage, and outdoor charging is inconvenient. They are not waterproof, and due to the unique characteristics of lithium batteries, users have concerns about their safety. Utility Model Content

[0003] The purpose of this invention is to provide a battery module with a screw-on waterproof back cover and a power bank function, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a battery module with a power bank function and a screw-on waterproof back cover, comprising a main body, a battery disposed in the middle of the main body, a front cover disposed on the left side of the main body, a positive copper post inserted into the middle of the front cover, and a snap ring for positioning and fixing being snapped onto the side wall of the positive copper post.

[0005] A charging base for snap-fit ​​fixation is inserted into the right side of the main body. A charging port is provided in the middle of the upper side of the charging base. A first PCBA board is fixedly connected to the middle of the charging base. The first PCBA board is connected to the charging port. Two elastic pins for constructing a circuit loop are provided between the first PCBA board and the battery. The two elastic pins are connected to the two poles of the battery.

[0006] The charging base has a charging cover on its right side. A third O-ring is provided between the outer right side wall of the charging cover and the charging base to increase sealing and tightness. A tail cover negative electrode is inserted into the inside of the right side of the charging cover. A second PCBA board is fixedly connected in the middle of the tail cover negative electrode. The second PCBA board is connected to the first PCBA board.

[0007] Preferably, the main body is made of aluminum alloy, the outer wall of the left end of the main body has a stepped structure, and a second O-ring is provided at the connection between the front cover and the main body.

[0008] Preferably, the positive electrode copper pillar is a columnar structure with a larger diameter on the left and a smaller diameter on the right. A concave hole is formed in the middle of the front cover, and the positive electrode copper pillar is inserted into the concave hole. A first O-ring is provided at the connection between the positive electrode copper pillar and the front cover.

[0009] Preferably, the side wall of the positive copper pillar is provided with an annular groove, and the retaining spring is fixedly connected to the recessed hole in the middle part of the front cover, with the retaining spring being engaged in the annular groove.

[0010] Preferably, both sides of the outer wall of the charging base are stepped structures, and a fourth O-ring is provided at the two stepped structures, and a spiral pattern is provided at the right stepped structure, and the charging cover and the right stepped structure are threaded together.

[0011] Preferably, the inner wall of the right end of the main body has a stepped structure, the left end of the charging base is snapped into the inner wall of the main body, and the right side of the battery is inserted into the charging base.

[0012] Preferably, a buffer gap is provided between the first PCBA board and the battery, and a washer is provided in the buffer gap, with the elastic pin penetrating through the washer at both ends.

[0013] Compared with the prior art, the beneficial effects of this utility model are: it adds a large aluminum alloy shell to protect the battery, ensures the battery's sealing, enhances waterproofing, and increases output function, allowing it to be used as an independent power bank. While strengthening the battery's safety performance, it also enables the battery to be used independently. When the battery's storage capacity decreases due to long-term repeated use, the battery can be replaced. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the internal connections of the battery module.

[0015] Figure 2 A circuit diagram for USB input and output charging ports.

[0016] In the diagram: 1. Main body, 2. Battery, 3. Front cover, 4. Positive copper pillar, 5. First O-ring, 6. Second O-ring, 7. Snap ring, 8. Charging base, 9. First PCBA board, 10. Charging port, 11. Charging cover, 12. Tail cover for negative electrode, 13. Washer, 14. Second PCBA board, 15. Third O-ring, 16. Elastic ejector pin, 17. Fourth O-ring. Detailed Implementation

[0017] To enhance understanding of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described and introduced below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, not all embodiments, and are not intended to limit the embodiments in any way. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] Please see Figure 1-2This utility model provides a technical solution: a battery module with a power bank function and a screw-on waterproof back cover, including a main body 1, a battery 2 disposed in the middle of the main body 1, a front cover 3 disposed on the left side of the main body 1, a positive copper post 4 inserted into the middle of the front cover 3, a retaining spring 7 for positioning and fixing being snapped onto the side wall of the positive copper post 4, a charging base 8 for snapping and fixing being inserted into the right side of the main body 1, a charging port 10 disposed in the middle of the upper side of the charging base 8, a first PCBA board 9 fixedly connected to the middle of the charging base 8, the first PCBA board 9 being connected to the charging port 10, and the first PCBA board 9 and the battery being connected. Two elastic pins 16 are provided between the front cover 3, the main body 1 and the charging base 8 for constructing a circuit loop. The two elastic pins 16 are connected to the two poles of the battery 2. A charging cover 11 is provided on the right side of the charging base 8. A third O-ring 15 is provided between the outer right side wall of the charging cover 11 and the charging base 8 to increase the sealing and tightness. A tail cover negative electrode 12 is inserted into the inside of the right side of the charging cover 11. A second PCBA board 14 is fixedly connected in the middle of the tail cover negative electrode 12. The second PCBA board 14 is connected to the first PCBA board 9. The battery 2 is placed between the front cover 3, the main body 1 and the charging base 8 to ensure the waterproof performance of the battery 2.

[0019] The main body 1 is made of aluminum alloy. The outer wall of the left end of the main body 1 has a stepped structure. A second O-ring 6 is provided at the connection between the front cover 3 and the main body 1. The main body 1 can fully protect the battery 2 and prevent the battery from being damaged when it is dropped. The second O-ring 6 can ensure the sealing of the connection between the front cover 3 and the main body 1.

[0020] The positive copper post 4 is a columnar structure with a larger diameter on the left and a smaller diameter on the right. A concave hole is stamped in the middle of the front cover 3. The positive copper post 4 is inserted into the concave hole. A first O-ring 5 is provided at the connection between the positive copper post 4 and the front cover 3. The positive copper post 4 abuts against the positive terminal of the battery 2. An annular groove is provided on the side wall of the positive copper post 4. The retaining spring 7 is fixedly connected to the concave hole in the middle of the front cover 3. The retaining spring 7 is engaged in the annular groove. The retaining spring can position and fix the positive copper post 4.

[0021] Both sides of the outer wall of the charging base 8 have a stepped structure, and a fourth O-ring 17 is provided at the two stepped structures. The right stepped structure has a spiral pattern. The charging cover 11 is threadedly connected to the right stepped structure. The inner wall of the right end of the main body 1 has a stepped structure. The left end of the charging base 8 is snapped into the inner wall of the main body 1. The right side of the battery 2 is inserted into the charging base 8. The charging cover 11 can be screwed into the charging base 8 to ensure a sealed and waterproof performance. When the charging cover 11 is removed, it is convenient to connect the charging port 10 to the USB to charge and discharge the battery 2.

[0022] A buffer gap is provided between the first PCBA board 9 and the battery 2, and a washer 13 is provided in the buffer gap. The two ends of the elastic pin 16 pass through the washer 13. When the charging base 8 is connected to the main body 1, it can ensure the tightness of the connection. When it falls, it has a certain buffering capacity to prevent the battery 2 from being damaged.

[0023] Although embodiments of the present invention have been shown and described, it should be emphasized that the above description is merely an introduction and description of the usage of the embodiments of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art will understand that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery module with a screw-on waterproof back cover and a power bank function, comprising a main body (1), characterized in that: The battery (2) is located in the middle of the body (1), and a front cover (3) is located on the left side of the body (1). A positive copper post (4) is inserted in the middle of the front cover (3), and a snap ring (7) for positioning and fixing is snapped on the side wall of the positive copper post (4). A charging base (8) for snap-fit ​​fixation is inserted into the right side of the main body (1). A charging port (10) is provided in the middle of the upper side of the charging base (8). A first PCBA board (9) is fixedly connected in the middle of the charging base (8). The first PCBA board (9) is connected to the charging port (10). Two elastic pins (16) for constructing a circuit loop are provided between the first PCBA board (9) and the battery (2). The two elastic pins (16) are connected to the two poles of the battery (2). The charging base (8) has a charging cover (11) on its right side. A third O-ring (15) for increasing sealing and fastening is provided between the outer right side wall of the charging cover (11) and the charging base (8). A tail cover negative electrode (12) is inserted into the inside of the right side of the charging cover (11). A second PCBA board (14) is fixedly connected in the middle of the tail cover negative electrode (12). The second PCBA board (14) is connected to the first PCBA board (9).

2. The battery module with a screw-on waterproof back cover and power bank function as described in claim 1, characterized in that: The main body (1) is made of aluminum alloy. The outer wall of the left end of the main body (1) has a stepped structure. A second O-ring (6) is provided at the connection between the front cover (3) and the main body (1).

3. The battery module with a screw-on waterproof back cover and power bank function as described in claim 1, characterized in that: The positive electrode copper column (4) is a columnar structure with a larger diameter on the left and a smaller diameter on the right. A concave hole is formed in the middle of the front cover (3). The positive electrode copper column (4) is inserted into the concave hole. A first O-ring (5) is provided at the connection between the positive electrode copper column (4) and the front cover (3).

4. The battery module with a screw-on waterproof back cover and power bank function as described in claim 3, characterized in that: The positive copper pillar (4) has an annular groove on its side wall. The retaining spring (7) and the recessed hole in the middle part of the front cover (3) are fixedly connected. The retaining spring (7) is engaged in the annular groove.

5. The battery module with a screw-on waterproof back cover and power bank function as described in claim 1, characterized in that: Both sides of the outer wall of the charging base (8) are stepped structures, and a fourth O-ring (17) is provided at the two stepped structures. A spiral pattern is provided at the right stepped structure. The charging cover (11) is threadedly connected to the right stepped structure.

6. The battery module with a screw-on waterproof back cover and power bank function as described in claim 1, characterized in that: The inner wall of the right end of the main body (1) has a stepped structure. The left end of the charging base (8) is snapped into the inner wall of the main body (1). The right side of the battery (2) is inserted into the charging base (8).

7. The battery module with a screw-on waterproof back cover and power bank function as described in claim 1, characterized in that: A buffer gap is provided between the first PCBA board (9) and the battery (2), and a washer (13) is provided in the buffer gap. The elastic pin (16) passes through the washer (13) at both ends.

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